What a difficult request. Not that an Amidar marquee is that rare or valuable, but everything else. It's a glass marquee, Stern cheap paper thin. Plus generally poorly screened so like Frenzy, they all have a lot of flaking.
I have one that's decent that I'd sell for $11, but it would probably cost close to $20 to pack and ship properly. I know, I know, $31 for an average condition Amidar marquee that might not make it there in one piece is not worth it.
Know anyone from your arera attending the pinball expo in Chicago in a couple of weeks? Maybe they'd transport it for you, saving all the shipping and increasing your chances of getting it there in tact.